Something to consider...
Mach3 will run on any Windows OS from Windows 2000 through Windows 10. The parallel port driver included with Mach3 will only work with 32-bit DESKTOP computers (Laptops are not supported) with versions of Windows 2000 through Windows 7, but will not work with any 64-bit version of Windows or with Windows 8. Windows 8, 10 and 64 bit versions of windows require an external motion device which can be purchased very reasonably.
Tweakie.